CN104766572A

CN104766572A - Display apparatus and control method thereof

Info

Publication number: CN104766572A
Application number: CN201510004108.2A
Authority: CN
Inventors: 郑钟勋; 赵晟佑; 金大式
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2014-01-03
Filing date: 2015-01-04
Publication date: 2015-07-08
Anticipated expiration: 2035-01-04
Also published as: KR102335182B1; CN104766572B; KR20150081021A; US9542896B2; US20150194088A1

Abstract

Provided is a control method of a display apparatus including a panel configured to include red (R), green (G), and white (W) subpixels, and a backlight configured to provide the panel with backlight using at least one of a white light source and a blue light source. The method includes: converting image data into R, G, and blue (B) subframe data; turning on the R, G, and W subpixels according to the R, G, and B subframe data; and turning on the W subpixel, setting a brightness of the white light source to a brightness value of the R, G, and B subframe data, providing the panel with white light at the set brightness, turning on subpixels corresponding to remaining subframe data, setting at least one of the brightness of the white light source and a brightness of the blue light source, and providing the panel with light at the set brightnesses.

Description

Display device and control method thereof

The cross reference of related application

This application claims the right of priority of the korean patent application No.10-2014-0000564 submitted in Korean Intellectual Property Office on January 3rd, 2014, by reference its full content is herein incorporated.

Technical field

The apparatus and method consistent with embodiment relate to a kind of display device and control method thereof, more specifically, relate to and use at least one in white light source and blue-light source to show display device and the control method thereof of image.

Background technology

Due to the development of electronic technology, dissimilar display device has been developed and has promoted.Especially, such as the large flat display device of liquid crystal display (LCD) device, Plasmia indicating panel (PDP) display device is promoted recently, and just uses in many families.

Due to LCD display can not luminescence independently, so usually use back light unit.Back light unit comprises the various light sources of such as white light-emitting diode (LED), and provides the liquid crystal panel with backlight.LCD filters backlight thus color display by using red (R), green (G) and blue (B) color filter.

R, G and B color filter has an independent existence.Therefore, because the region for transmitting the light produced by described back light unit is fixed, so the ability expressing color is limited.

Use the White LED of general yttrium aluminum garnet (YAG) fluorescent material only may represent the colour gamut of 75% compared to National Television System Committee (NTSC) (NTSC) system.In the sub-pixel structure be made up of independently R, G, B sub-pixel, white light is not when not being filtered by sub-pixel structure, but by three primary colors R, G, and the combination of B represents.Due to this feature, brightness reduces.

In order to address this problem, pass through sequentially conducting R, G wherein, and B light source replaces using color filter to be developed to field sequential color (FSC) method realizing color.But FSC method causes the problem of color-separated (CBU) phenomenon.In addition, the brightness of R, G and B light source and the change of wavelength change according to temperature.Therefore, along with R, G and B light source uses within a period of time, colour rendering may reduce.

Summary of the invention

Exemplary embodiment overcomes above-mentioned shortcoming and does not have the shortcoming of description above other.In addition, exemplary embodiment does not need to overcome above-mentioned shortcoming, and exemplary embodiment can not also overcome any above-mentioned problem.

One or more exemplary embodiment provides one can realize panchromatic and high brightness, and the display device operated under transparent mode and control method thereof.

According to an aspect of exemplary, provide a kind of display device, comprising: panel, it is configured to comprise red (R), green (G) and white (W) sub-pixel, backlight, its at least one being configured in use white light source and blue-light source provides backlight to panel, image processor, it is configured to for view data being converted to red (R), green (G) and blue (B) sub-frame data, panel driver, it is configured to carry out conducting R according to R, G and B sub-frame data respectively, G and W sub-pixel, backlight driver, it is configured to drive described backlight, and controller, it is configured to control described panel driver and carrys out conducting W sub-pixel, the brightness of white light source is set to R, the brightness value of G and B sub-frame data, control described backlight driver to drive white source to provide the white light being in setting brightness to panel, control described panel driver with conducting respectively with except corresponding to the R of this brightness value, G, the sub-pixel corresponding with the residue sub-frame data outside B sub-frame data, at least one in the brightness of white light source and the brightness of blue-light source is set, and control described backlight driver to drive in white light source and blue-light source at least one with provide be in setting brightness light.

Controller can be further configured to and control described panel driver, with conducting correspond respectively to residue sub-frame data in residue R and G sub-frame data R and the G sub-pixel of at least one at least one, and the brightness of white light source is set, to correspond at least one in remaining R and G sub-frame data; And described controller can be configured to control described panel driver corresponds to the residue B sub-frame data in residue sub-frame data W sub-pixel with conducting further, and arranges the brightness of blue-light source, to correspond to remaining B sub-frame data.

Brightness value can correspond to the minimum value in R, G and B sub-frame data.

W sub-pixel can be transparent.

Display device can be configured to provide the first transparent mode and the second transparent mode, and in the first transparent mode, controller can be configured to control described panel driver with closeall R further, G and W sub-pixel, and control backlight drive and provide light at least one driving in white light source and blue-light source to panel, and in the second transparent mode, controller can be configured to control described panel driver further and carry out closeall R, G and W sub-pixel, and control backlight driver to close white light source and blue-light source.

Blue-light source can comprise multiple blue LED (LED), and white light source can comprise multiple White LED, blue led is coated with fluorophor wherein, and each blue led and each White LED can be integrated on single led chip.

Blue-light source can comprise multiple blue LED die, and white light source can comprise multiple white LED chip, and blue led is coated with fluorophor wherein, and each blue LED die and each white LED chip are arranged abreast.

Controller can be further configured to and control described backlight driver to use pulse-length modulation (PWM) light-dimming method to drive at least one in white light source and blue-light source, to provide the light of the brightness being in setting.

Image processor can be further configured to and convert view data corresponding to PenTile to ^tMthe form of structure, and convert the view data after conversion to R, G and B sub-frame data.

According to the one side of another exemplary embodiment, provide to comprise and be configured to comprise red (R), green (G) and white (W) sub-pixel panel, and backlight is supplied to the control method of the display device of the backlight of panel by least one being configured in use white light source and blue-light source, described method comprises: view data be converted to red (R), green (G) and blue (B) sub-frame data; Respectively according to R, G, and B sub-frame data carrys out conducting R, G and W sub-pixel; And conducting W sub-pixel, white light source brightness is set to R, the brightness value of G and B sub-frame data, the white light being in setting brightness is provided to panel, conducting respectively with except corresponding to the R of this brightness value, the sub-pixel that remaining sub-frame data outside G with B sub-frame data is corresponding, arranges at least one in the brightness of white light source and the brightness of blue-light source, and provides the light being in setting brightness to panel.

The operation of light being in setting brightness is provided to comprise to panel: conducting corresponds respectively at least one in R and the G sub-pixel of at least one of residue R in residue sub-frame data and G sub-frame data; The brightness of white light source is set, to correspond at least one in remaining R and G sub-frame data; Conducting corresponds to the W sub-pixel of the residue B sub-frame data in residue sub-frame data; And the brightness of blue-light source is set, to correspond to remaining B sub-frame data.

W sub-pixel can be transparent.

Display device can provide the first transparent mode and the second transparent mode, and may further include: in the first transparent mode, closeall R, G and W sub-pixel, and at least one in conducting white light source and blue-light source, and in the second transparent mode, closeall R, G and W sub-pixel, and close white light source and blue-light source.

In the operation of light providing adjustment to panel, the brightness of at least one in white light source and blue-light source can use pulse-length modulation (PWM) light-dimming method to adjust.

Converting view data to R, in the operation of G and B sub-frame data, view data can be converted into corresponding to PenTile ^tMthe form of structure, and then can be converted into R, G and B sub-frame data.

According to the one side of another exemplary embodiment, provide a kind of display device, comprising: panel, it comprises red (R), green (G) and white (W) sub-pixel; Backlight, it comprises white light source and blue-light source, and is configured to provide light to panel; And controller, it is configured conducting W sub-pixel, drives white light source based on the minimum value in R, G and B sub-frame data, by from R, G and B sub-frame data each in deduct minimum value to calculate remaining R, G and B sub-frame data, respectively according to R, G and B sub-frame data carrys out conducting R, sub-pixel in G and W sub-pixel, and drive at least one in white light source and blue-light source based on remaining R, G and B sub-frame data.

Controller can be further configured to and drive display device with in the first transparent mode and the second transparent mode, and wherein, described controller can be configured to further, in the first transparent mode, closeall R, G, and W sub-pixel, and drive at least one in white light source and blue-light source, and wherein said controller can be configured to further, in the second transparent mode, closeall R, G and W sub-pixel, and close white light source and blue-light source.

According to various exemplary embodiment, white light source and blue-light source are controlled separately, thus brightness can be improved, the property difference of light source caused color change and can be resolved, and display device can be operated in transparent mode.

Part is set forth in description subsequently by additional and/or other aspects of exemplary embodiment and advantage, and its part will be become apparent or can be learned by the practice to exemplary embodiment from describe.

Accompanying drawing explanation

With reference to accompanying drawing, by describing some exemplary embodiment, above-mentioned and/or other side will become more obvious, in the accompanying drawings:

Fig. 1 is the block diagram of the configuration of display device according to exemplary embodiment;

Fig. 2 shows the configuration of panel according to exemplary embodiment and backlight;

Fig. 3 diagrammatically illustrates according to exemplary embodiment, the inside configuration of display panel in three dimensions;

Fig. 4 shows according to exemplary embodiment, for driving the example of the configuration of the panel driver of each sub-pixel in panel;

Fig. 5 shows the R according to exemplary embodiment, G, and the combination of W sub-pixel and the form of its repeated arrangement;

Fig. 6 and 7 shows according to exemplary embodiment, the various examples of the configuration of direct-type backlight;

Fig. 8 to 12 shows according to exemplary embodiment, for driving the various examples of the method for backlight;

Figure 13 shows according to exemplary embodiment, the example of the configuration of the color filter used in transparent display;

Figure 14 shows the configuration of the Transparence Display system according to exemplary embodiment;

Figure 15 shows the transparent display according to another exemplary embodiment;

Figure 16 shows according to exemplary embodiment, is applied to PenTile ^tMthe PenTile of structure ^tMtransfer algorithm;

Figure 17 according to exemplary embodiment, the detailed diagram of the display device utilizing televisor to realize;

Figure 18 is the process flow diagram of the control method of display device according to exemplary embodiment; And

Figure 19 illustrate in detail according to exemplary embodiment, based on R, G, and the panel driving method of W image generation algorithm and the example of backlight driving method.

Embodiment

Now with reference to accompanying drawing, some exemplary embodiment is described in further detail.

In the following description, even if in different drawings, identical Reference numeral is also for identical element.The things (such as detailed structure and element) defined in the description is provided to help the complete understanding to exemplary embodiment.Therefore, it is evident that, exemplary embodiment can be performed when the object not having those to define especially.In addition, known function or structure is not described in detail, because it obscures exemplary embodiment by with unnecessary details.

Fig. 1 is the block diagram of the configuration of display device according to exemplary embodiment.

With reference to figure 1, display device 1000 can comprise display panel 100, panel driver 210, backlight driver 220, controller 230 and image processor 240.

Display panel 100 can comprise panel 110 and backlight 120.Panel 110 can comprise red (R), green (G) and white (W) sub-pixel.Panel 110 carrys out corresponding R, G and the W sub-pixel of conducting according to red (R), green (G) of view data and blue (B) sub-frame data.

Backlight 120 can comprise white light source and blue-light source.Backlight 120 can provide to panel 110 backlight of at least one used in white light source and blue-light source.

Image processor 240 image data processing, and produce the frame data of different colours.Image processor 240 can convert the view data input from external source to R, G and B sub-frame data.More specifically, image processor 240 can detect R from view data, G and B channel value, and generation corresponds respectively to the R detected, G, and the R of the channel value of B, G and B sub-frame data.

Panel driver 210 conducting can correspond to the sub-pixel of color of often kind of color sub-frame data.More specifically, sheet drive 210 conducting can correspond respectively to R, the R of G and B color sub-frame data, G, and W sub-pixel.

Backlight driver 220 provides backlight drive signal, to drive backlight 120.

Controller 230 controls the integrated operation of display device 1000.More specifically, controller 230 can correspond to the sub-pixel of color of the sub-frame data of often kind of color by control panel driver 210 with conducting, and can control backlight driver 220 to carry out at least one in conducting white light source and blue-light source according to the driving condition of panel 110.

Such as, when view data is converted into R, during G and B sub-frame data, then controller 230 can correspond to the R sub-pixel of R sub-frame data with conducting by control panel driver 210, and can control backlight driver 220 and carry out conducting white light source.

In addition, controller 230 can correspond to the G sub-pixel of G sub-frame data with conducting by control panel driver 210, and can control backlight driver 220 and carry out conducting white light source.

In addition, controller 230 can carry out conducting and correspond to the W sub-pixel of B sub-frame data by control panel driver 210, and can control backlight driver 220 and carry out conducting blue-light source.

In addition, controller 230 can conducting W sub-pixel, by the brightness adjustment of white light source for passing through R, G, the brightness value represented with B sub-frame data, and provide the white light of adjustment (namely to panel 110, white light source is driven) by controlling backlight driver 220, (namely conducting corresponds respectively to the sub-pixel of residue sub-frame data, except corresponding to the R of brightness value, R outside G and B sub-frame data, G, with B sub-frame data), adjust the brightness of at least one in white light source and blue-light source, and provide the light of adjustment (namely to panel 110, at least one in white light source and blue-light source is driven) by control backlight driver 220.

In other words, when the R of identical amount, G and B sub-frame data merges, produce white light.Therefore, the R of identical amount, G with B sub-frame data can be expressed as the data of the white light representing identical amount.

Therefore, white light corresponding to identical amount can use W sub-pixel and white light source to represent, and each remaining R, G and the B sub-frame data except the data being used to indicate white light can use R, at least one in G and W sub-pixel and white light source and blue-light source represents.

More specifically, controller 230 can carry out at least one in conducting R and G sub-pixel for the remaining data except corresponding to the data of brightness value at least one of R and G sub-frame data, and adjusts the brightness of white light source based on remaining data.Brightness value can be interpreted as the R by combining identical amount, G and B sub-frame data and the white light represented.

Therefore, controller 230 can carry out conducting R sub-pixel for the residue R sub-frame data except corresponding to the data of brightness value in R sub-frame data, and adjusts the brightness of white light source, to correspond to remaining R sub-frame data.

In addition, controller 230 can carry out conducting G sub-pixel for the residue G sub-frame data except corresponding to the data of brightness value in G sub-frame data, and adjusts the brightness of white light source, to correspond to remaining G sub-frame data.

Controller 230 can carry out conducting B sub-pixel for the residue B sub-frame data except corresponding to the data of brightness value in B sub-frame data, and adjusts the brightness of blue-light source, to correspond to remaining B sub-frame data.

Especially, in order to calculate the R of the identical amount representing white light that is combined, G, and B sub-frame data, controller 230 can detect the minimum value in R, G and B sub-frame data.In other words, at R, G, and minimum value in B sub-frame data be combined the R representing white light, the amount of G with B sub-frame data is identical.

Therefore, had the R of the amount identical with the minimum value in R, G and B sub-frame data by combination, G and B sub-frame data represents white light.

Therefore, controller 230 can conducting W sub-pixel, to correspond to the minimum value among R, G and B sub-frame data, and from white light source, light is supplied to panel 110, to make it possible to represent by R, G, and the brightness value represented by B sub-frame data.

Below will describe in further detail and be used for detecting at R, G, and the minimum value among B sub-frame data, light to correspond to minimum value, and is provided to the process of panel 110 by conducting W sub-pixel from white light source; And in conducting R, G and W sub-pixel one, to correspond to remaining R, G and B sub-frame data, and utilize the process of at least one in white light source and blue-light source.

Controller 230 is at R, G, and the remaining data in B sub-frame data except corresponding to the data of brightness value carrys out conducting R, G, with W sub-pixel, and pulse-length modulation (PWM) light-dimming method can be used to regulate the brightness of at least one in blue-light source and white light source.Therefore, use PWM light-dimming method, controller 230 can regulate the brightness of at least one of white light source and blue-light source adaptively, to correspond to each remaining R, G and B sub-frame data.

Each pixel of panel 110 does not comprise as the R in the display device of prior art, G and B sub-pixel, but comprises at least one W sub-pixel, and R and G sub-pixel.Therefore, when the sub-pixel of the residue color except white sub-pixels is switched on, and when white light source is switched on, the color with R and G attribute is expressed, and when white sub-pixels is switched on, and when being switched on when blue-light source, the color with B attribute is expressed.

Therefore, coloured image can be represented by the combination of at least one in R, G and W sub-pixel and white light source and blue-light source.In addition, owing to using white sub-pixels, so the problem of deterioration in brightness in prior art can be solved, and compared to NTSC system, the full color region of 100% can be reproduced.

Fig. 2 shows the configuration of panel 110 according to exemplary embodiment and backlight 120.With reference to figure 2, the panel 110 in display panel 100 can comprise the first polarization layer 111, first hyaline layer 112, transistor layer 113, liquid crystal layer 114, color filter 115, second hyaline layer 116, second polarization layer 117 and protective seam 118.

First polarization layer 111 filters the light launched from backlight 120, and the light of only transmission first polarization direction.First polarization layer 111 can utilize horizontal polarization filter or vertical polarization wave filter to realize.Second polarization layer 117 can utilize and realize relative to the tilt polarization filter of 90 ° of angles of the first polarization layer 111.In other words, when the first polarization layer 111 is horizontal polarization filter, the second polarization layer 117 is vertical polarization wave filters.First polarization layer 111 always flatly or does not vertically provide, but also can tilt with 45° angle degree.In this case, the second polarization layer 117 only needs relative to the first polarization layer 111 by inclination 90 ° of angles.

Because the first and second polarization layers 111 and 117 tilt 90 ° of angles relative to each other, so light can not pass through the first and second polarization layers 111 and 117 usually.But, when the light through the first polarization layer 111 penetrates liquid crystal layer 114, change of polarized direction.Thereafter, light through the second polarization layer 117, and enters the eyes of observer.In other words, when electric signal is not transmitted to the liquid crystal in liquid crystal layer 114, the liquid crystal phase in liquid crystal layer 114 for the first polarization layer 111 by inclination 90 ° of angles.Therefore, when the light flatly filtered by the first polarization layer 111 penetrates liquid crystal layer 114, polarisation of light direction vertically changes, and therefore, light can pass the second polarization layer 117.When the white light source of backlight 120 is switched on, white light passes through as former state, makes performance white.But, when electric signal is transmitted to the liquid crystal in liquid crystal layer 114, liquid crystal arrangement is become to make to make light pass through when not changing polarisation of light direction.Therefore, light is filtered by the second polarization layer 117, and therefore cannot penetrate the second polarization layer 117, makes corresponding pixel be represented as black.

First hyaline layer 112 is transmitted through the light of the first polarization layer 111 as former state.First hyaline layer 112 can be formed by glass or other transparent polymer material.

Transistor layer 113 comprises multiple transistor, with the liquid crystal cells in conducting or closedown liquid crystal layer 114.Each transistor can be realized by thin film transistor (TFT) (TFT).Each TFT is connected to corresponding liquid crystal cells in liquid crystal layer 114.Therefore, in the screen assembly of SVGA (800 × 600), the TFT of 3 × 480,000 is used.TFT is the element of the switch served as each pixel.When TFT is switched on, due to pixel two ends between voltage difference, the molecules align of liquid crystal changes.In other words, as mentioned above, when light is through liquid crystal layer 114, polarisation of light direction changes or does not change.

Liquid crystal layer 114 comprises multiple liquid crystal cells.Liquid crystal is the material of the regular molecular arrangement had as solid.When electric current does not flow, liquid crystal molecule is reversed, but when current lead-through, liquid crystal molecule along a direction with line spread.Each liquid crystal cells comprises: public electrode; And stride across liquid crystal and towards each public electrode, and be electrically connected to the pixel electrode of each TFT in transistor layer 113.

Color is added to the light by liquid crystal layer 114 by color filter 115.Color filter 115 can be divided into different color filter regions according to exemplary embodiment.The size of each filter area may correspond to each liquid crystal cells in liquid crystal layer 114.In this manual, for convenience of description, liquid crystal cells and corresponding filter area are called as sub-pixel.

In the exemplary embodiment, color filter 115 can utilize red (R), the repeated arrangement of green (G) and white (W) filter area realizes.In other words, panel 110 has R, G and W sub-pixel wherein and to be combined and by the form of repeated arrangement.Especially, R, G and W sub-pixel wherein may be there is be combined and multi-form by repeated arrangement.This will be described in greater detail below.

Panel driver 210 by applying electric signal to corresponding to the liquid crystal cells of each sub-pixel or blocking electric signal, can carry out conducting or closing each sub-pixel.Therefore, such as different colours component that is red, green and indigo plant can be expressed.Panel driver 210 is by suitably adjusting the ON time of each sub-pixel to adjust R, the ratio of G and B.Therefore, different natural colors can be represented.

Transmission light is passed color filter 115 towards the second polarization layer 117 by the second hyaline layer 116.Second hyaline layer 116 also can be formed by different transparency materials, such as, and the glass in the first hyaline layer 112.

Light on the second corresponding polarization direction of polarization layer 117 transmission as described above, and stop the light of other polarization direction.

Protective seam 118 is coated layers protecting the outside of panel 110.Protective seam 118 also can be formed by the transparency material of such as glass.

Because liquid crystal layer 114 itself can not be luminous, so the liquid crystal layer 114 in panel 110 needs backlight.

Backlight 120 uses white light source 122 or blue-light source 123, to provide backlight to panel 110.White light source 122 comprises three primary colors R, G for exporting, and the light source of the white light of B, and can utilize general lamp to realize, but utilize white light-emitting diode (LED) to realize in the present example embodiment.Similarly, blue-light source 123 can utilize blue led to realize.

White LED can be convert the LED come by being coated with fluorophor to the blue led sending blue light.Fluorophor can be Eu or Ce as rare earth material.

Although color filter 115 does not comprise blue subpixels, backlight 120 uses blue-light source 124, and to make all R, G and B attribute can be expressed.Will be described in greater detail below detailed expression.

Fig. 3 diagrammatically illustrates according to exemplary embodiment, the inside configuration of display panel 100 in three dimensions.With reference to figure 3, backlight 120 is arranged on downside, and arranges multiple panel layer in upside successively, to form panel 110.

In figure 3, the example of side-light backlight 120 is illustrated.With reference to figure 3, backlight 120 can comprise optical plate (LGP) 121, first and second LED strip 124-1 and 124-2, multiple White LED 122 and multiple blue led 123.

White LED 122 and blue led 123 are arranged alternately on the first and second LED strip 124-1 and 124-2.First and second LED strip 124-1 and 124-2 comprise multiple electric wiring, and so that electric signal is applied to each LED122 and 123, and its two edges being arranged on light guide plate 121 are with from two edge-lits.Spread in two dimension by light guide plate 121 from the light of two edge-emission, through diffusion sheet (not shown) and the prismatic lens (not shown) on LGP 121, and concentrate on frontal.

First polarization layer 111 as described above by the light of the first polarization direction in the backlight of launching from backlight 120 towards liquid crystal layer 114 and color filter 115 transmission.

With reference to figure 3, at color filter 115 place, set gradually R, G and W sub-pixel.Especially, multiple W pixel can be provided.R, G and W sub-pixel forms single pixel, and a part for multiple W sub-pixel can be used to utilize the blue-light source of backlight to represent blueness, and remaining W sub-pixel can be used to use white light source to carry out compensate for brightness.

Such as, at color filter 115 place, R sub-pixel, G sub-pixel and four W sub-pixels can be set, and R, G, W sub-pixel can form single pixel.R sub-pixel is used to indicate redness, and G sub-pixel is used to indicate green, and one in four W sub-pixels is used to utilize the blue-light source of backlight to represent blueness, and other W sub-pixels are used to use white light source to carry out compensate for brightness.

In addition, any amount of W sub-pixel (such as, all four W sub-pixels) in the middle of four W sub-pixels can be used to use blue-light source to represent blue, and uses white light source to carry out compensate for brightness.Can control to perform whether conducting by PWM or close blue-light source or white light source.

More specifically, in order to the color frame data representing that R and G is mixed wherein, panel driver 210 conducting R and G sub-pixel, and backlight driver 220 conducting white light source 122.Therefore, represent red and green by R and G sub-pixel.In this case, when W sub-pixel is switched on together with R and G sub-pixel, brightness can improve.But, because white light is added, so the color that will represent may be changed.Therefore, conducting W sub-pixel can differently be determined whether according to the result considering light characteristic and color characteristics.

Alternatively, panel driver 210 can conducting R and G sub-pixel dividually, and backlight driver 220 conducting white light source, can separately represent to make red and green.

Subsequently, in order to represent B color frame data, panel driver 210 closes R and G sub-pixel, and conducting W sub-pixel, and backlight driver 220 conducting blue-light source 123.Because blue light is as former state by W subpixel area, so blueness is expressed.In the present example embodiment, R and G sub-pixel is closed, but due to R and G sub-pixel not transmit blue, so R and G sub-pixel can maintain the state of conducting.This operation differently can be used according to exemplary embodiment.

Therefore, red, green, blue look, by sequential combination, makes coloured image to be expressed.

Fig. 4 shows according to exemplary embodiment, for driving the example of the configuration of the panel driver 210 of each sub-pixel in panel 100.

With reference to figure 4, panel driver 210 can comprise data driver 211, gate drivers 212 and timing controller 213.

Data driver 211 is connected to the liquid crystal cells in panel 110 respectively by a plurality of data lines.

The liquid crystal cells that gate drivers 212 is connected in panel 110 respectively by many gate lines.

Each data line is connected to the source electrode of each TFT 113 ' in transistor layer 113, and each gate line is connected to the gate electrode of each TFT 113 '.In the diagram, each liquid crystal cells can be R sub-pixel, G sub-pixel or W sub-pixel.

Gate drivers 212 applies scanning impulse by gate line and performs scan operation, corresponds to the pixel of each color frame with conducting.Data driver 211 performs display operation by the pixel that the data-signal of each pixel value corresponding to view data is applied to scanning.

Timing controller 213 is according to the view data provided by image processor 240, control signal is applied to data driver 211 and gate drivers 212, and controls described driver 211 and gate drivers 212 and correspondingly perform scan operation and display operation.

In the exemplary embodiment of Fig. 4, employ timing controller 213, but the display device with small panel also can utilize CPU (central processing unit) (CPU) to replace timing controller 213.

In figure 3, side-light backlight 120 is used.But exemplary embodiment is not limited thereto, and such as, straight lower backlight also can be used.

Fig. 5 shows the R according to exemplary embodiment, G, and the combination of W sub-pixel and the spread pattern of repetition.

With reference to figure 5, panel 110 can comprise the R of repeated arrangement, multiple combinations 510,520,530,540,550,560 and 570 of G and W sub-pixel.

First combination 510 of R, G and W sub-pixel forms single pixel by combining a R sub-pixel, a G sub-pixel and 1 W sub-pixel.Cause due to the R of same ratio, G and W sub-pixel the first combination 510 can represent the resolution of 1, the aperture ratio of 1 and 1 color.Along with the quantity of the pixel by sub-pixel grouping being formed in a different manner increases, then resolution improves.Along with the ratio of W sub-pixel increases, aperture ratio (aperture ratio) increases.Along with the ratio of R and G sub-pixel increases, color sensation improves.At this, color and color sensation have identical implication.

Second combination 520 of R, G and W sub-pixel forms single pixel by combining a R sub-pixel, a G sub-pixel and two W sub-pixels.Second combination 520 can form single pixel by flatly combining a R sub-pixel, a G sub-pixel and two W sub-pixels, or forms single pixel by vertically combining a R sub-pixel, a G sub-pixel and two W sub-pixels.Therefore, along with the quantity of the pixel by sub-pixel grouping being formed in a different manner increases, resolution brings up to 1.5.Along with the ratio of W sub-pixel increases, aperture ratio brings up to 1.5.In contrast, along with the ratio of R and G sub-pixel reduces, color sensation is reduced to 0.75.

3rd combination 530 of R, G and W sub-pixel forms single pixel by combining two R sub-pixels, two G sub-pixels and two W sub-pixels.3rd combination 530 have and R, G and W sub-pixel first combine 510 identical R, the ratio of G and W sub-pixel, so the resolution that can be expressed as 1, be the aperture ratio of 1, and be the color of 1.

4th combination 540 of R, G and W sub-pixel forms single pixel by combining two R sub-pixels, a G sub-pixel and three W sub-pixels.4th combination 540 can replace with W sub-pixel by the single sub-pixel G combining 530 by the 3rd, to make relatively many increases W sub-pixel.Correspondingly, resolution as above is 1, and aperture ratio is increased to 1.5, and makes green color sensation be reduced to 0.5 because G sub-pixel reduces.

5th combination 550 of R, G and W sub-pixel is by combination R sub-pixel, and a G sub-pixel and four W sub-pixels form single pixel.5th combination 550 can obtain by utilizing W sub-pixel to change the single R sub-pixel of the 4th combination 540, to make relatively to increase many W sub-pixels.Correspondingly, resolution is 1 as described above, and aperture ratio brings up to 2, and due to the reduction of R sub-pixel, red sense also reduces to 0.5.

6th combination 560 of R, G and W sub-pixel passes through combination R sub-pixel, two G sub-pixels, and three W sub-pixels form single pixel.6th combination 560 can obtain by utilizing G sub-pixel to change the single W sub-pixel of the 5th combination 550, to make relatively to increase many G sub-pixels.Correspondingly, resolution is 1 as described above, and aperture ratio is reduced to 1.5, and because of relatively adding the G sub-pixel of many, so red sense is only 0.5.

7th combination 570 of R, G and W sub-pixel passes through combination two R sub-pixels, a G sub-pixel, and three W sub-pixels form single pixel.7th combination 570 can obtain by utilizing R sub-pixel to change the single G sub-pixel of the 6th combination 560, to make relatively to increase many R sub-pixels.Correspondingly, resolution is 1 as described above, and aperture is 1.5 than as above, and red sense and green sense are increased to 0.75 a little.

The multiple combination 510,520,530,540,550,560 of the R of repeated arrangement, G and W sub-pixel, and 570 are called as PenTile ^tMstructure.PenTile ^tMstructure is the technology of innovation for improving aperture ratio, and wherein, by R, G, B, and W sub-pixel forms pixel, to make W sub-pixel transmitting white light.Therefore, they are different types of PenTile ^tMstructure.In the present example embodiment, the multiple combination 510,520,530,540,550,560 of the R of repeated arrangement, G and W sub-pixel, and 570 also increase aperture ratio by comprising W sub-pixel.

Blue-light source comprises multiple blue led, and white light source is included in multiple White LEDs that wherein blue led is coated with fluorophor.Each blue led and each White LED can be integrated on a LED chip.

In addition, blue-light source comprises multiple blue led, and white light source is included in multiple White LEDs that wherein blue led is coated with fluorophor.Each blue led and each White LED can be arranged side by side.Detailed description is provided with reference to figure 6 and 7.

Fig. 6 and 7 shows according to exemplary embodiment, the different examples of the configuration of direct-type backlight.

With reference to figure 6, backlight 120 can comprise substrate 126 and LED chip 130.LED chip 130 can be disposed in predetermined pattern on substrate 126.In figure 6, LED chip 130 with arranged at regular intervals, but is not limited thereto.Interval can be positioned at central portion or be positioned at edge part and differently designed according to interval.

On each LED chip 130, White LED 122 and blue led 123 integrated.White LED 122 is that blue led 122-1 is coated with fluorophor 122-2.In figure 6, for convenience of describing, the blue led for White LED 122 is called as the second blue led 122-1, and independent blue led is called as the first blue led 123.

First blue led 123 and the second blue led 122-1 are once all manufactured on substrate 125, and only the second blue led 122-1 is coated with fluorophor 122-2, to manufacture the LED chip 130 that white light source and blue-light source thereon coexist.On substrate 125, provide the electric wire being connected to the first blue led 123 and the second blue led 122-1 respectively.Therefore, can conducting or close blue-light source and white light source separately.

Fig. 7 illustrates the configuration of the backlight 120 according to another exemplary embodiment.With reference to figure 7, backlight 120 can comprise substrate 126, multiple white light source 122 and multiple blue-light source 123.

By being coated with the blue led 122-1 of fluorophor 122-2 and the white LED chip converted realizes each white light source 122 on substrate 122-3.

In addition, each blue-light source 123 can utilize the blue LED die of the blue led 123-1 be included on substrate 123-2 to realize.

Therefore, white light source and blue-light source 122 and 123 can come conducting or closedown respectively by the electric wire be arranged on substrate 126.

In figs. 6 and 7, each light source comprises substrate 125,122-3 or 123-2.But substrate 126 can also be used as substrate (substrate) according to exemplary embodiment.

In addition, the white light source 122 on the side-light backlight 120 of Fig. 3 and blue-light source 123 can utilize as the independent LED in Fig. 7 realizes.But the white light source 122 on side-light backlight 120 and blue-light source 123 also can utilize the single led chip as Fig. 6 to realize.

Backlight 120 can comprise white light source 122 as above and blue-light source 123.Backlight driver 220 drives white light source 122 or blue-light source 123 optionally to express R, G and B.

Fig. 8 to 12 shows according to exemplary embodiment, for driving the various examples of the method for backlight 120.

With reference to figure 8, when panel 110 uses the frame rate of 120Hz, the second frame that the first frame that R and G sub-frame data is mixed wherein and wherein B sub-frame data exist shows with 60Hz successively.

Because the first frame comprises mixing R and G sub-frame data, so panel driver 210 conducting R and G sub-pixel.Backlight driver 220 after certainly starting to scan scheduled delay that the first frame starts and having pass by, conducting white light source 122.

Because the second frame comprises B sub-frame data, so panel driver 210 conducting W sub-pixel.Backlight driver 220 after certainly starting to scan scheduled delay that the second frame starts and having pass by, conducting blue-light source 123.Therefore, when the conducting of W sub-pixel, blue-light source 123 is switched on, and makes can use W sub-pixel to represent blueness.Adopt this driving method, can steady display video.

Selectively, the time for conducting white light source 122 or blue-light source 123 can be determined by vertical synchronizing signal.In the segmentation of output first frame, white light source 122 synchronously can be switched on vertical synchronizing signal.In addition, in the segmentation of output second frame, blue-light source 123 synchronously can be switched on vertical synchronizing signal.

In addition, in the segmentation of output third and fourth frame, foregoing description can be applied in an identical manner.

With reference to figure 9, when panel 110 uses the frame rate of 240Hz, the third and fourth frame that the first and second frames that R and G sub-frame data is mixed wherein and wherein B sub-frame data exist sequentially is shown with 60Hz.

Because the first and second frames comprise R and the G sub-frame data of mixing, so panel driver 210 conducting R and G sub-pixel.Backlight driver 220 is starting to scan conducting white light source 122 after scheduled delay that the first frame starts has passed through, and backlight driver 220 keeps conducting state during showing the predetermined segment of the first and second frames wherein.

Because the third and fourth frame comprises B sub-frame data, panel driver 210 conducting W sub-pixel.During backlight driver 220 shows the predetermined segment of the third and fourth frame wherein, conducting white light source 122 and blue-light source 123 together.In the third and fourth frame, R and G sub-pixel does not show image, but only W sub-pixel shows image.Can by while conducting white light source 122 and blue-light source 123 use W sub-pixel to represent blue and white.In this case, the intensity of white light source 122 can use pulse-length modulation (PWM) light-dimming method to adjust.

When backlight 120 is driven as illustrated in fig. 9, transmitting white and blue light, the W of conducting simultaneously sub-pixel.Therefore, brightness can improve.

With reference to Figure 10, when panel 110 uses the frame rate of 240Hz, the first and second frames that R and G sub-frame data is mixed wherein, and the third and fourth frame that B sub-frame data exists wherein is sequentially shown with 60Hz.

Although the first and second frames are shown, panel driver 210 conducting R and G sub-pixel and close W sub-pixel.Backlight driver 220 leaves white light source 122 conducting.

Although the third and fourth frame is shown, panel driver 210 closes R and G sub-pixel, and only W sub-pixel shows image.Therefore, although the third and fourth frame is shown, both blue light and white light all can use W sub-pixel to represent.Therefore, brightness can improve.

Figure 11 and 12 shows according to exemplary embodiment, drives the method for backlight 120 in a transparent mode in display device 1000.

Panel 110 comprises the W sub-pixel as transparent pixels, and therefore can be used to Transparence Display system.

Transparence Display system is the equipment with the transparency, and is therefore visible in the background of equipment.In the prior art, display panel uses opaque semiconducting compound, and such as Si and GaAs produces.But the different application field that can not cover due to existing display panel is developed, so carry out effort to the exploitation of novel electron equipment.As this effort result and a kind of product developed is transparent display.Transparent display comprises transparent oxide semiconductor film, and therefore has the transparency.When transparent display is used, user can watch the information on the screen of transparent display, can also see the background after transparent display simultaneously.Therefore, the room and time restriction that the display device that can solve prior art has.

More specifically, display device 1000 provides the first transparent mode and the second transparent mode.In the first transparent mode, closeall R, G and the W sub-pixel of controller 230, and provide the light from least one in white light source and blue-light source to panel 110.

When closeall R, G and the W sub-pixel of controller 230, and when providing the light from white light source to panel 110, the light from white light source passes panel 110 and is output.Therefore, the inside of display device 1000 is visible for user.

In addition, when closeall R, G and the W sub-pixel of controller 230, and when providing the light from blue-light source to panel 110, be output by plate 110 from the light of blue-light source.Therefore, the inside of display device 1000 is visible for user in blueness.

In addition, when closeall R, G and the W sub-pixel of controller 230, and when alternately providing the light from white light source and blue-light source to panel 110, alternately exported through panel 110 from the light of white light source and blue-light source.Neon effect can be showed.

In addition, in the second transparent mode, closeall R, G and the W sub-pixel of controller 230, and close white light source and blue-light source.

When closeall R, G and the W sub-pixel of controller 230, and when closing white light source and blue-light source, display device 1000 background below, instead of be visible in the inside of display device 1000 to user.

Figure 13 shows according to exemplary embodiment, the example of the configuration of the color filter used in transparent display.

With reference to Figure 13, show and combine R thereon, the configuration of the color filter 115 of G and W sub-pixel.

On color filter 115, R, G and W subpixel area 115-1,115-2 and 115-3 are sequentially arranged.R and G sub-pixel area 115-1 and 115-2 comprises region 115-4 and 115-5 of local transparent.Because W sub-pixel area 115-3 is also transparent, the area ratio of transparent region comprises R, G and B sub-pixel color filter 115 when larger.Therefore, the transparency can improve.

Figure 14 shows the configuration of the Transparence Display system according to exemplary embodiment.

Under the first transparent mode, when closeall R, G and the W sub-pixel of controller 230, and when providing the light from least one in white light source and blue-light source to panel 110 as described above, the inside of display device is visible for user.This can be used for the information service in such as retail kiosk, or for the unmanned terminal of unmanned robotization.

With reference to Figure 14, transparent display 1000 can comprise transparent panel 110, multiple white light source 122 and multiple blue-light source 123.

Transparent panel 110 can realize with transparent material, such as, utilizes color filter 115 as shown in Figure 13 to realize.When transparent panel 110 have configure as shown in Figure 2 time, transparent substrates, transparent optical film, color filter, transparent TFT, transparency electrode etc. can be used.

Such as, the operable transparent substrates of protective seam 118 as shown in Figure 2 realizes.Transparent substrates can be formed by the polymeric material of glass or such as plastics.

First and second polarization layers 111 and 117 can utilize transparent plastic optics film to realize.Such as, absorbing polarization medium can be used, such as, polyvinyl alcohol (PVA) (PVA) film of iodine or dyestuff.

Transistor layer 113 can realize by the transparent crystal tube layer comprising transistor, and wherein, the transparency material that the opaque silicon of existing TFT is utilized such as zinc paste and titanium dioxide realizes.

Electrode used in panel 110 can realize by transparency electrode.Transparency electrode can be the material of such as indium tin oxide (ITO) or Graphene.

Color filter 115 can be formed by the transparent plastic material of the color resistant adhesive of the pixel comprised for the formation of such as R and G pixel and diaphragm.The multipolymer of acrylic acid and acrylate can be normally used as binder polymer, for formation pixel.Acrylic compounds thermosetting plastics, polyimide (PI) or epoxy resin can be used as diaphragm.

Color filter 115 comprises the color-filter layer being divided at least one color filter district and transparent filtrating area.Mei Zhong color filter district comprises the transparent region of local.

When transparent display 1000 adopts transparent panel 110, transparent display 1000 background is below visible for the user of viewing Transparence Display apparatus 1000.In fig. 14, transparent display 1000 is embodied as display window, that is, a retail kiosk.In this case, the product 10 shown in display window is illustrated, and independent information 20 and 30 can be presented on transparent panel 110 further.

In fig. 14, the information 20 about product 10 can be shown with the form of graphical messages with other information 30.In addition, for run dissimilar application program screen, also can show on transparent panel 110 for the screen of play content, webpage or other Drawing Object.

When the transparent display 1000 shown in fig. 14 has configuration as shown in Figure 17, controller 230 can produce this kind of information by running the multiple programs be stored in memory storage 250, and performs according to generated display properties and play up.Therefore, different information 20 and 30 can be displayed on transparent panel 110.

In fig. 14, do not use backlight, but have at least a white light source 122 and at least one blue-light source 123 to be arranged on after transparent panel 110, described transparent panel 110 can be provided to make backlight.In fig. 14, white light source 122 and blue-light source 123 are provided to upper surface and the lower surface place in the space after transparent panel 110.But, the left surface that white light source 122 and blue-light source 123 also can be provided and right surface.

In transparent display 1000 as shown in Figure 14, white light source 122 and blue-light source 123 can utilize single led chip as shown in Figure 6 to realize, or can realize with white lamps and blue lamp.

In transparent display 1000 as shown in figure 14, the controller 230 being connected to transparent panel 110 controls transparent panel 110 and light source 122 and 123, sequentially to represent R, G and B, and correspondingly color display.

Figure 15 shows the transparent display 1000 according to another exemplary embodiment.

With reference to Figure 15, transparent display 1000 comprises the transparent panel 110 as Figure 14, but is with Figure 14 difference, and white light source and blue-light source are closed, and makes not provide backlight.

Therefore, the object in transparent display 1000 behind is visible for user.In fig .15, one tree 1500 is in after transparent display 1000.When white light source and blue-light source not conducting, tree 1500 is visible by transparent panel 110 for user.

Transparent display 1000 can be applied to mobile terminal, projector and video wall and televisor, but is not limited to this.

Be described in detail with reference to the method for Figure 11 and 12 to the backlight 120 for driving transparent display 1000.

Figure 11 shows the method for the backlight 120 for driving the display device 1000 shown in Figure 14 in the first transparent mode.

With reference to Figure 11, when panel 110 uses the frame rate of 180Hz, the second frame that the first frame that R and G sub-frame data is mixed wherein, wherein B sub-frame data exist and the 3rd frame that works in transparent mode are by sequentially with 60 hertz of displays.

Because the first frame comprises R and the G sub-frame data of mixing, so panel driver 210 conducting R and G sub-pixel.Backlight driver 220 is conducting white light source 122 when starting to scan the first frame, and backlight driver 220 keeps conducting state during showing the predetermined segment of the first frame wherein.

Because the second frame comprises B sub-frame data, described panel driver 210 conducting W sub-pixel.Conducting white light source 122 and blue-light source 123 during backlight driver 220 shows the predetermined segment of the second frame wherein.In the second frame, R and G sub-pixel does not show image, but only W sub-pixel shows image.Blue and white can by while conducting white light source 122 and blue-light source 123 use W sub-pixel to represent.In this case, the intensity of white light source 122 can use pulse-length modulation (PWM) light-dimming method to adjust.When backlight 120 is by this way by driving, white light is launched together with blue light, and W sub-pixel is switched on simultaneously.Therefore, brightness can improve.

There is no R wherein, G and B sub-frame data, and display device 1000 is operated in the 3rd frame under transparent mode, the closeall R of panel driver 210, G and W sub-pixel, and at least one in backlight driver 220 conducting white light source 122 and blue-light source 123, and show wherein in the segmentation of the 3rd frame and keep conducting state.In this case, the white light launched from white light source 122 or blue-light source 123 or blue light illumination are reflected in the inside of transparent display 1000, make the inside of transparent display 1000 can be visible to user.

In fig. 11, in the 3rd frame operating in transparent mode, closeall R, G and the W sub-pixel of panel driver 210.But, even if when R and G sub-pixel be closed and the conducting of W sub-pixel time, total the inventive concept still can applied.W sub-pixel is transparent pixels, even if so the conducting of W sub-pixel, the 3rd frame also can operate under transparent mode.

Figure 12 shows the method for the backlight 120 for driving the display device 1000 shown in Figure 15 in the second transparent mode.

With reference to Figure 12, when panel 110 uses the frame rate of 180Hz, the second frame that the first frame that R and G sub-frame data is mixed wherein, wherein B sub-frame data exist and the 3rd frame that operates in transparent mode are by sequentially with 60 hertz of displays.

Because the second frame comprises B sub-frame data, the conducting of described panel driver 210 is at W sub-pixel.During backlight driver 220 shows the predetermined segment of the second frame wherein, conducting white light source 122 and blue-light source 123.In the second frame, R and G sub-pixel does not show image, but only W sub-pixel shows image.Blue and white can by while conducting white light source 122 and blue-light source 123 use W sub-pixel to represent.In this case, the intensity of white light source 122 can use pulse-length modulation (PWM) light-dimming method to adjust.When backlight 120 is by this way by driving, white light is launched together with blue light, and W sub-pixel is switched on simultaneously.Therefore, brightness can improve.But, backlight driver 220 only conducting blue-light source 123 during can showing the predetermined segment of the second frame wherein.

There is no R wherein, G and B sub-frame data, and display device 1000 is operated in the 3rd frame under transparent mode, the closeall R of panel driver 210, G and W sub-pixel, and backlight driver 220 show the segmentation of the 3rd frame wherein during closeall white light source 122 and blue-light source 123.Because white light source 122 and blue-light source 123 are closed, so transparent display 1000 object is below visible by natural light for user.

In fig. 12, operating in the 3rd frame in transparent mode, closeall R, G and the W sub-pixel of panel driver 210.But, even if when the closedown of R and G sub-pixel and the conducting of W sub-pixel, total the inventive concept still can applied.W sub-pixel is transparent pixels, even if so the conducting of W sub-pixel time, the 3rd framework also can operate under transparent mode.

Figure 16 shows according to exemplary embodiment, is applied to PenTile ^tMthe PenTile of structure ^tMtransfer algorithm.

View data can convert to corresponding to PenTile by image processor 240 ^tMthe form of structure, and convert the view data after conversion to R, G and B sub-frame data.

With reference to Figure 16, when receiving the picture signal of the frame rate with 60Hz, RGW algorithm is used to produce R, G and W image, to be applied to PenTile ^tMstructure, that is, picture signal converted to and be suitable for R, G and W sub-pixel, converts thereof into 120Hz, and it is transferred to respectively LCD and White LED and blue led driver.More carry out more detailed description R with reference to Figure 19, G and W image produces algorithm.

With reference to Figure 19, when image is transfused to (S1910), image is divided into R, G and B image (S1915).Display device 1000 generates multiple frame by suitably combining segmentation image.Such as, as described in reference to Fig. 8 to 12, the first frame is generated by by mixing R and G image, uses B image to produce the second frame, and sequentially shows the first frame and the second frame subsequently.In addition, additionally can generate and show the 3rd frame of not output image.

When determine the frame of current display be first or the second frame time (S1920), display device 1000 confirms R, the minimum value T (S1925) of G and B image.When T is 0, display device 1000 confirms whether B is 0 (S1930).0 when B is not 0, R image or G image.Therefore, display device 1000 conducting R, G and W sub-pixel (S1945), conducting White LED, that is, white light source, and close blue led, that is, blue-light source (S1950).

When B is 0, display device 1000 conducting R and G sub-pixel, and close W sub-pixel (S1935), and conducting white LEDs and closedown blue led (S1940).

When T is greater than 0, R sub-pixel is set to deduct T from r value, wherein, r value corresponds to original R image value (that is, R sub-frame data), G sub-pixel is set to deduct T from g value, wherein, g value corresponds to original G image value (that is, G sub-frame data), W sub-pixel is set to T (S1955), and display device 1000 is by the value (S1960) of each pixel driver to setting.

In this state, display device 1000 conducting White LED and close blue led (S1965).

When determine the frame of current display be the 3rd or the 4th frame time (S1920), W sub-pixel is driven to the brightness value (S1970 and S1975) corresponding to B image.In this state, display device 1000 closes White LED and conducting blue led (S1980).

In another exemplary embodiment, with reference to the third and fourth frame, White LED can conducting together with blue led, or can conducting continuously, thus can prevent brightness from reducing.

According to various exemplary embodiment, the problem that brightness is low in R, G and B sub-pixel structure can by adding W sub-pixel and using blue led to solve.

Figure 17 is according to exemplary embodiment, the more detailed block diagram of the display device 1000 utilizing televisor to realize.

With reference to Figure 17, display device 1000 can comprise display panel 100, panel driver 210, backlight driver 220, controller 230, image processor 240, memory storage 250, audio process 260, loudspeaker 270, radio receiver 275, communicator 280, remote signal receiver 285 and input unit 290.

Because the operation of display panel 100, panel driver 210, backlight driver 220, controller 230 and image processor 240 is described in detail above, so no longer repeat the description to it at this.

Memory storage 250 can store the operating system (OS) for driving display device 1000, for perform the software of difference in functionality and firmware, application, content, by the information of the uniqueness of the feature of the configuration information that inputted by user while running application or arrange and instruction display device 1000.

Controller 230 can use the various programs in memory storage 250 of being stored in control the integrated operation of display device 1000.

Controller 230 can comprise ROM (read-only memory) (ROM) 231, random access memory (RAM) 232, timer 2 33, main central processing unit (CPU) 234, dissimilar interface 235-1 to 235-N and bus 236.

ROM231, RAM232, timer 2 33, host CPU 234 and dissimilar interface 235-1 to 235-N can be connected to each other via bus 236, to send or to receive various data or signal.

The first to the N number of interface 235-1 to 235-N is connected to other assembly, and assembly shown in fig. 17, makes host CPU 234 can access other assemblies.Such as, when the equipment of such as USB (universal serial bus) (USB) storer is connected, host CPU 234 visits USB storage by USB interface.

When display device 1000 is connected to external power source, host CPU 234 is operated in holding state.In the standby state, when ON command is received by the multiple receiving trap of such as remote signal receiver 285 or input unit 290, host CPU 234 access to storage device 250, and use the operating system (OS) be stored in memory storage 250 to carry out start up system.Subsequently, host CPU 234 arranges the several functions of display device 1000 according to the information-setting by user be stored in advance in memory storage 250.

More specifically, ROM231 storage Management Information Base carrys out start up system.When ON command is transfused to and power supply is energized, host CPU 234 copies the operating system be stored in memory storage 250 (OS) to RAM232 according to the order be stored in ROM231, and executive operating system, can start to make system.After startup completes, host CPU 234 copies the various application programs be stored in memory storage 250 to RAM232, and the application program that operation copies is can perform various operation.

Timer 2 33 carrys out timing according to the control of host CPU 234.In above-mentioned exemplary embodiment, start after scheduled delay at panel scan, conducting white light source 122 or blue-light source 123.In this case, host CPU 234 control timer 233 carrys out counter plate scanning to start rear institute elapsed time and counts, and host CPU 234 controls backlight driver 220, to provide white light or blue light according to count results.

Remote signal receiver 285 receives the remote signal sent from telepilot.Remote signal receiver 285 can comprise optical receiver for reception infrared (IR) signal, or is receiving remote signal according to the wireless communication protocol of such as bluetooth and Wireless Fidelity (Wi-Fi) with the communicating of telepilot.

Input unit 290 can utilize the various button arranged in the main body of display device 1000 to realize.User can input the various user commands of such as conducting or shutdown command, channel change command, volume control command and menu recognition command by input unit 290.

Radio receiver 275 be tuned to broadcast channel, and to receive and process broadcast singal.Broadcasting receiver 275 can comprise tuner, detuner, balanced device and demultiplexer.Radio receiver 275 according to the control of controller 230 be tuned to broadcast channel, receive the broadcast singal wanted of user, separate and be in harmonious proportion balanced broadcast singal, and broadcast singal is demultiplexed into video data, voice data and additional data.

The video data of demultiplexing is sent to image processor 240.Image processor 240 performs the multiple image procossing of video data, such as noise filtering, frame-rate conversion, conversion of resolution etc., and produces the frame for outputting on screen thus.In the process, image processor 240 by being separated often kind of color data, such as, can generate color framing data at the R that video data comprises, G and B.

The voice data of demultiplexing is sent to audio process 260.Audio process 260 performs the various process of voice data, such as decodes, amplifies, noise filtering etc.

May further include graphic process unit (not shown).According to the control of host CPU 234, graphic process unit forms various on-chip study (OSD) message or graphic screen.When broadcast singal comprises additional data, such as during caption data, host CPU 234 controls graphic process unit to produce subtitling image, generated subtitling image is mapped to each frame produced by image processor 240, and forms a frame thus.

Loudspeaker 270 exports the voice data processed by audio process 260.Controller 230 control loudspeaker 270, with consistent with display panel 100, makes Audio and Video data syn-chronization.

Communicator 280 communicates with various external source according to different communication protocol.More specifically, the various communication protocols of such as IEEE, Wi-Fi, bluetooth, the third generation (3G), forth generation (4G) and near-field communication (NFC) can be used.

Controller 230 can reproduce by communicator 280 multi-medium data received from external source, and by broadcast singal that broadcasting receiver 275 receives.

In addition, when the order for reproducing the multi-medium data be stored in memory storage 250 is inputted by remote controller signal receiver 285 or input unit 290, controller 230 controls image processor 240 and audio process 260 to process multi-medium data.

When display device 1000 reproducing multimedia data and broadcast singal, display device 1000 is guidance panel 110 and backlight 120 as described above, has suitable brightness and the image of color to make it possible to show.

When display device 1000 is multifunctional terminal devices, the various assemblies of such as mobile phone or panel computer, such as camera, touch sensor, geomagnetic sensor, gyro sensor, acceleration transducer and GPS (GPS) chip can be included further.

Figure 18 is the process flow diagram of the control method of display device 1000 according to exemplary embodiment.

With reference to Figure 18, comprise panel to comprise red (R), green (G) and white (W) sub-pixel; And backlight provides the control method of the display device of backlight to comprise with at least one using in white light source and blue-light source to panel: view data to be converted to red (R), green (G) and blue (B) sub-frame data (S1810).

Control method comprises: the difference conducting R corresponding to R, G and B sub-frame data, G and W sub-pixel (S1820).

Control method comprises: conducting W sub-pixel, be by R by the brightness adjustment of white light source, the brightness value that G and B sub-frame data represents, the white light after adjustment is provided to panel, the sub-pixel that conducting is corresponding with the residue sub-frame data except brightness value respectively, adjust the brightness of at least one in white light source and blue-light source, and the light (S1830) of adjustment is provided to panel.

In S1830, from R with G sub-frame data at least one carry out at least one of conducting R and G sub-pixel for the remaining data except the data corresponding with brightness value, and by the brightness regulation of white light source for corresponding to remaining data, from B sub-frame data, carry out conducting W sub-pixel for the remaining data except the data corresponding with brightness value, and the brightness adjusting blue-light source is to correspond to remaining data.

In addition, in the operation of S1830, W sub-pixel is switched on, and to correspond to the minimum value in R, G and B sub-frame data, and provides white light source to panel, to make it possible to represent the brightness value by represented by R, G and B sub-frame data.

W sub-pixel is transparent pixels.Therefore, display device provides the first transparent mode and the second transparent mode.In the first transparent mode, may further include closeall R, G and W sub-pixel, and at least one in conducting white light source and blue-light source.In the second transparent mode, may further include closeall R, G and W sub-pixel, and close white light source and blue-light source.

Blue-light source can comprise multiple blue LED (LED), and white light source can be included in multiple White LEDs that wherein blue led is coated with fluorophor.Each blue led and each White LED can be integrated on single led chip.

In addition, blue-light source can comprise multiple blue LED die, and white light source can be included in multiple white LED chips that wherein blue led is coated with fluorophor.Each blue LED die and each white LED chip can be arranged abreast.

In the operation of S1830, the brightness of at least one in white light source and blue-light source can adjust with pulse-length modulation (PWM) light-dimming method.

When the operation of S1810, view data can be converted into corresponding to PenTile ^tMthe form of structure, and be then converted into R, G and B sub-frame data.

Sequentially perform and can be stored on non-transitory computer-readable medium according to the program of the control method of this exemplary embodiment and can be provided.

Such as, for performing, view data is converted to red (R), green (G), with blue (B) sub-frame data, conducting and R respectively, the R that G with B sub-frame data is corresponding, G and W sub-pixel, and conducting W sub-pixel, be by R by the brightness adjustment of white light source, brightness value represented by G and B sub-frame data, the white light of adjustment is provided to panel, conducting and the sub-pixel corresponding respectively to remaining sub-frame data except brightness value, adjust the brightness of at least one in white light source and blue-light source, and provide the program of the operation of the light of adjustment can be stored in non-transitory computer-readable medium to panel, and can be provided.

In addition, such as, may further include for performing closeall R in the first transparent mode, G and W sub-pixel, and the program of the operation of at least one in conducting white light source and blue-light source, and for R, G and W sub-pixel closeall in the second transparent mode, and the program of closing white light source and blue-light source can be stored in non-transitory computer-readable medium, and is provided.

Non-transitory computer-readable medium is for semi-permanently storing data, and the medium that can be read by equipment.More specifically, above-mentioned application or program can be stored in non-transitory computer-readable medium, such as, in CD (CD), digital video disc (DVD), hard disk, Blu-ray disc, USB (universal serial bus) (USB), memory card and ROM (read-only memory) (ROM).

Display device 1000 may further include the processor of such as CPU and microprocessor, hardware module or for perform above-mentioned operation circuit at least one.Above-mentioned exemplary embodiment and advantage are only exemplary, should not be interpreted as restrictive.This instruction easily can be applied to the device of other type.In addition, the description of exemplary embodiment is intended to be illustrative, instead of for limiting the scope of the concept of the present invention limited by claims, and many replacements, modifications and variations will be apparent to those skilled in the art.

Claims

1. a display device, comprising:

Panel, it comprises red (R), green (G) and white (W) sub-pixel;

Backlight, its at least one being configured in use white light source and blue-light source provides backlight to panel;

Image processor, it is configured to for view data being converted to red (R), green (G) and blue (B) sub-frame data;

Panel driver, it is configured to carry out conducting R, G and W sub-pixel according to R, G and B sub-frame data respectively;

Backlight driver, it is configured to drive described backlight; And

Controller, it is configured to control described panel driver and carrys out conducting W sub-pixel, the brightness of white light source is set to R, the brightness value of G and B sub-frame data, control described backlight driver to drive white source to provide the white light being in setting brightness to panel, control described panel driver with conducting respectively with except corresponding to the R of described brightness value, the sub-pixel that residue sub-frame data outside G with B sub-frame data is corresponding, at least one in the brightness of white light source and the brightness of blue-light source is set, and control described backlight driver to drive in white light source and blue-light source at least one with provide be in setting brightness light.

2. display device according to claim 1, wherein, described controller is further configured to and controls described panel driver, at least one in the residue R in residue sub-frame data and R and the G sub-pixel of at least one in G sub-frame data is corresponded respectively to conducting, and the brightness of white light source is set, to correspond at least one in remaining R and G sub-frame data, and

Described controller is configured to control described panel driver corresponds to the residue B sub-frame data in residue sub-frame data W sub-pixel with conducting further, and arranges the brightness of blue-light source, to correspond to remaining B sub-frame data.

3. display device according to claim 2, wherein, described brightness value corresponds to the minimum value in R, G and B sub-frame data.

4. display device according to claim 1, wherein, W sub-pixel is transparent.

5. display device according to claim 4, wherein, described display device is configured to provide the first transparent mode and the second transparent mode, and

In the first transparent mode, described controller is configured to control described panel driver with closeall R, G and W sub-pixel further, and controls backlight driver and provide light at least one driving in white light source and blue-light source to panel, and

In the second transparent mode, described controller is configured to control described panel driver further and carrys out closeall R, G and W sub-pixel, and controls backlight driver to close white light source and blue-light source.

6. display device according to claim 1, wherein, described blue-light source comprises multiple blue LED (LED), and described white light source is included in multiple White LEDs that wherein blue led is coated with fluorophor, and

Each blue led and each White LED are integrated on single led chip.

7. display device according to claim 1, wherein, described blue-light source comprises multiple blue LED die, and described white light source is included in multiple white LED chips that wherein blue led is coated with fluorophor, and

Each blue LED die and each white LED chip are arranged abreast.

8. display device according to claim 1, wherein, described controller is further configured to and controls described backlight driver to use pulse-length modulation (PWM) light-dimming method to drive at least one in white light source and blue-light source, to provide the light of the brightness being in setting.

9. display device according to claim 1, wherein, described image processor is further configured to and converts view data corresponding to PenTi le to ^tMthe form of structure, and convert the view data of conversion to R, G and B sub-frame data.

10. one kind comprises the panel being configured to comprise red (R), green (G) and white (W) sub-pixel, and backlight is supplied to the control method of the display device of the backlight of panel by least one being configured in use white light source and blue-light source, described method comprises:

View data is converted to red (R), green (G) and blue (B) sub-frame data;

Conducting R, G and W sub-pixel is carried out respectively according to R, G and B sub-frame data; And

Conducting W sub-pixel, white light source brightness is set to R, the brightness value of G and B sub-frame data, the white light being in setting brightness is provided to panel, the sub-pixel that the remaining sub-frame data of conducting respectively except R, G and B sub-frame data except corresponding to described brightness value is corresponding, at least one in the brightness of white light source and the brightness of blue-light source is set, and the light being in setting brightness is provided to panel.

11. methods according to claim 10, wherein, provide the operation of the light being in setting brightness to comprise to described panel:

Conducting corresponds respectively at least one in the residue R in residue sub-frame data and R and the G sub-pixel of at least one in G sub-frame data;

The brightness of white light source is set, to correspond at least one in remaining R and G sub-frame data;

Conducting corresponds to the W sub-pixel of the residue B sub-frame data in residue sub-frame data; And

The brightness of blue-light source is set, to correspond to remaining B sub-frame data.

12. methods according to claim 11, wherein, described brightness value corresponds to the minimum value in R, G and B sub-frame data.

13. methods according to claim 10, wherein, described W sub-pixel is transparent.

14. methods according to claim 13, wherein, described display device provides the first transparent mode and the second transparent mode, and described method comprises further:

In the first transparent mode, closeall R, G and W sub-pixel, and at least one in conducting white light source and blue-light source, and

In the second transparent mode, closeall R, G and W sub-pixel, and close white light source and blue-light source.

15. methods according to claim 10, wherein, described blue-light source comprises multiple blue LED (LED), and described white light source is included in multiple White LEDs that wherein blue led is coated with fluorophor, and

Each blue led and each White LED are integrated on single led chip.